Dykem Blue Medium Tip High Temp Marker DYKEM High Purity Markers are your answer for marking on stainless steel or any surface where degradation, contamination or other adverse effects are a concern. The formulas contain trace amounts of halogens, low melting metals and are low in chlorides. Permanent, valve-action mechanism prevents paint in barrel from drying when cap is left off. Drying time is 45 seconds - 1 minute. Applications include stainless steel, aerospace, ship/boat/marine, oil & gas, power & utilities, nuclear facilities. Meets GE specification D50TF8 and D50YP12, PWA 36700 rev. D, U.S. Department of Energy spec RDT-F7-3T,5.1.